1 Physical Properties
1.1 Tenacity
1.3 Solubility
Not Available
Not Available
1.5 Durability
Not Available
Not Available
1.6 Specific Gravity
2.65-2.693.00-3.25
1
7.18
1.7 Fracture
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
Not Available
1.8 Cleavage
Perfect on {001}, good on {010}
Not Available
1.9 Mohs Hardness
1.14 Chemical Composition
(Na,Ca)Al1-2Si3-2O8
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)